feat(mcp): paginate record lists and describe document inputs

backend/src/mcp/tools/accounting.ts

@@ -1,3 +1,5 @@
+import { outgoingAddressSchema, outgoingRowsSchema, outgoingReportSchema } from "../documentSchemas"
+import { limitFromArgs, offsetFromArgs, paginatedResult, paginationProperties } from "../pagination"
 import { and, desc, eq, ilike, or } from "drizzle-orm"
 import { randomUUID } from "node:crypto"
 import {
@@ -27,11 +29,6 @@ import { McpTool } from "../types"
 
 export { prepareStatementAllocationInput } from "../statementAllocations"
 
-const limitFromArgs = (args: Record<string, unknown>, fallback = 25) => {
-    const raw = Number(args.limit ?? fallback)
-    if (!Number.isFinite(raw)) return fallback
-    return Math.min(Math.max(Math.trunc(raw), 1), 100)
-}
 
 const stringArg = (args: Record<string, unknown>, key: string) => {
     const value = args[key]
@@ -456,7 +453,7 @@ export const accountingTools: McpTool[] = [
                 state: { type: "string", description: "Optionaler Statusfilter, z. B. Entwurf oder Gebucht." },
                 customer: { type: "number" },
                 project: { type: "number" },
-                limit: { type: "number", minimum: 1, maximum: 100 },
+                ...paginationProperties,
             },
         },
         async handler(context, args) {
@@ -479,10 +476,11 @@ export const accountingTools: McpTool[] = [
                 .select()
                 .from(createddocuments)
                 .where(and(...conditions))
-                .orderBy(desc(createddocuments.createdAt))
-                .limit(limitFromArgs(args))
+                .orderBy(desc(createddocuments.createdAt), createddocuments.id)
+                .limit(limitFromArgs(args) + 1)
+                .offset(offsetFromArgs(args))
 
-            return { rows }
+            return paginatedResult(rows, args)
         },
     },
     {
@@ -542,12 +540,12 @@ export const accountingTools: McpTool[] = [
                 description: { type: "string" },
                 startText: { type: "string" },
                 endText: { type: "string" },
-                address: { type: "object" },
-                rows: { type: "array" },
+                address: outgoingAddressSchema,
+                rows: outgoingRowsSchema,
                 letterhead: { type: "number" },
                 availableInPortal: { type: "boolean" },
                 customSurchargePercentage: { type: "number" },
-                report: { type: "object" },
+                report: outgoingReportSchema,
                 serialConfig: serialConfigSchema,
             },
         },
@@ -598,12 +596,12 @@ export const accountingTools: McpTool[] = [
                 description: { type: "string" },
                 startText: { type: "string" },
                 endText: { type: "string" },
-                address: { type: "object" },
-                rows: { type: "array" },
+                address: outgoingAddressSchema,
+                rows: outgoingRowsSchema,
                 letterhead: { type: "number" },
                 availableInPortal: { type: "boolean" },
                 customSurchargePercentage: { type: "number" },
-                report: { type: "object" },
+                report: outgoingReportSchema,
                 serialConfig: serialConfigSchema,
             },
         },
@@ -720,8 +718,8 @@ export const accountingTools: McpTool[] = [
                     enum: ["Standard", "13b UStG", "19 UStG", "12.3 UStG"],
                     description: "Steuertyp des gesamten Ausgangsdokuments, nicht der einzelne USt-Satz einer Position.",
                 },
-                rows: { type: "array" },
-                report: { type: "object" },
+                rows: outgoingRowsSchema,
+                report: outgoingReportSchema,
                 availableInPortal: { type: "boolean" },
             },
         },
@@ -803,7 +801,7 @@ export const accountingTools: McpTool[] = [
             type: "object",
             properties: {
                 status: { type: "string", enum: ["draft", "completed", "error"] },
-                limit: { type: "number", minimum: 1, maximum: 100 },
+                ...paginationProperties,
             },
         },
         async handler(context, args) {
@@ -815,10 +813,11 @@ export const accountingTools: McpTool[] = [
                 .select()
                 .from(serialExecutions)
                 .where(and(...conditions))
-                .orderBy(desc(serialExecutions.createdAt))
-                .limit(limitFromArgs(args))
+                .orderBy(desc(serialExecutions.createdAt), serialExecutions.id)
+                .limit(limitFromArgs(args) + 1)
+                .offset(offsetFromArgs(args))
 
-            return { rows }
+            return paginatedResult(rows, args)
         },
     },
     {
@@ -878,7 +877,7 @@ export const accountingTools: McpTool[] = [
             type: "object",
             properties: {
                 query: { type: "string", description: "Suchtext für Kontonummer, Bezeichnung oder Beschreibung." },
-                limit: { type: "number", minimum: 1, maximum: 100 },
+                ...paginationProperties,
             },
         },
         async handler(context, args) {
@@ -908,10 +907,11 @@ export const accountingTools: McpTool[] = [
                 .select()
                 .from(accounts)
                 .where(whereCond)
-                .orderBy(accounts.number)
-                .limit(limit)
+                .orderBy(accounts.number, accounts.id)
+                .limit(limit + 1)
+                .offset(offsetFromArgs(args))
 
-            return { accountChart, rows }
+            return { accountChart, ...paginatedResult(rows, args) }
         },
     },
     {
@@ -924,7 +924,7 @@ export const accountingTools: McpTool[] = [
             properties: {
                 state: { type: "string", description: "Optionaler Statusfilter." },
                 paid: { type: "boolean", description: "Optionaler Zahlungsstatus." },
-                limit: { type: "number", minimum: 1, maximum: 100 },
+                ...paginationProperties,
             },
         },
         async handler(context, args) {
@@ -939,10 +939,11 @@ export const accountingTools: McpTool[] = [
                 .select()
                 .from(incominginvoices)
                 .where(and(...conditions))
-                .orderBy(desc(incominginvoices.createdAt))
-                .limit(limitFromArgs(args))
+                .orderBy(desc(incominginvoices.createdAt), incominginvoices.id)
+                .limit(limitFromArgs(args) + 1)
+                .offset(offsetFromArgs(args))
 
-            return { rows }
+            return paginatedResult(rows, args)
         },
     },
     {
@@ -981,6 +982,7 @@ export const accountingTools: McpTool[] = [
             required: ["id"],
             properties: {
                 id: { type: "number" },
+                ...paginationProperties,
             },
         },
         async handler(context, args) {
@@ -995,9 +997,11 @@ export const accountingTools: McpTool[] = [
                     eq(files.tenant, context.tenantId),
                     eq(files.archived, false)
                 ))
-                .orderBy(desc(files.createdAt))
+                .orderBy(desc(files.createdAt), files.id)
+                .limit(limitFromArgs(args) + 1)
+                .offset(offsetFromArgs(args))
 
-            return { rows }
+            return paginatedResult(rows, args)
         },
     },
     {
@@ -1311,7 +1315,7 @@ export const accountingTools: McpTool[] = [
             type: "object",
             properties: {
                 account: { type: "number", description: "Optionale Bankkonto-ID." },
-                limit: { type: "number", minimum: 1, maximum: 100 },
+                ...paginationProperties,
             },
         },
         async handler(context, args) {
@@ -1326,9 +1330,10 @@ export const accountingTools: McpTool[] = [
                 .from(bankstatements)
                 .where(and(...conditions))
                 .orderBy(desc(bankstatements.date), desc(bankstatements.id))
-                .limit(limitFromArgs(args))
+                .limit(limitFromArgs(args) + 1)
+                .offset(offsetFromArgs(args))
 
-            return { rows }
+            return paginatedResult(rows, args)
         },
     },
     {
@@ -1367,7 +1372,7 @@ export const accountingTools: McpTool[] = [
             properties: {
                 bankstatement: { type: "number" },
                 incominginvoice: { type: "number" },
-                limit: { type: "number", minimum: 1, maximum: 100 },
+                ...paginationProperties,
             },
         },
         async handler(context, args) {
@@ -1383,10 +1388,11 @@ export const accountingTools: McpTool[] = [
                 .select()
                 .from(statementallocations)
                 .where(and(...conditions))
-                .orderBy(desc(statementallocations.created_at))
-                .limit(limitFromArgs(args))
+                .orderBy(desc(statementallocations.created_at), statementallocations.id)
+                .limit(limitFromArgs(args) + 1)
+                .offset(offsetFromArgs(args))
 
-            return { rows }
+            return paginatedResult(rows, args)
         },
     },
     {